feat: add board detail repository create list and card operations

AGENTS.md

@@ -113,7 +113,7 @@ Kanbn4Droid is an unofficial app to connect to and manipulate data stored in sel
   - Tapping on the filter by tag or search buttonswhen either of them is applied disables the active filter.
 - When a card(s) is selected by a long press, the filter by tag and search buttons get hidden by the select all, move card and delete card buttons until all cards are deselected.
 - When a card(s) is selected by a long press, the back arrow in the title bar and the back system button remove all selections.
-- Current status: implemented in `BoardDetailActivity` with `ViewPager2` (one list per page), inline list-title edit, card rendering (title/tags/due date locale formatting and expiry color), cross-page card selection, page-scoped select-all, move dialog with list selector, two-step delete confirmation, mutation guards while in progress, and API-backed reload/reconciliation behavior through `BoardDetailViewModel` and `BoardDetailRepository`. Card move requests try these variants in order for compatibility across Kan.bn API versions: `PUT /api/v1/cards/{cardPublicId}` with `listPublicId`, then a GET+full-body `PUT /api/v1/cards/{cardPublicId}` payload (`title`, `description`, `index`, `listPublicId`, `dueDate`), then `PUT /api/v1/cards/{cardPublicId}` with `listId`, then `PATCH /api/v1/cards/{cardPublicId}` with `listId`. Board detail parsing now prefers public ids (`publicId`/`public_id`) over internal `id` values so follow-up card/list mutations target the correct API identifiers. Label chip border colors are hydrated from the Kan.bn `Get a label by public ID` endpoint (`colourCode`) and cached in-memory by `BoardDetailRepository` so each label color is fetched only once per app process. Selection action icons use local vector drawables (`ic_select_all_grid_24`, `ic_move_cards_horizontal_24`, `ic_delete_24`) with day/night resource variants so dark mode uses light icon fills automatically. Startup blocking dialogs are shown for missing board id and missing session.
+- Current status: implemented in `BoardDetailActivity` with `ViewPager2` (one list per page), inline list-title edit, card rendering (title/tags/due date locale formatting and expiry color), cross-page card selection, page-scoped select-all, move dialog with list selector, two-step delete confirmation, mutation guards while in progress, and API-backed reload/reconciliation behavior through `BoardDetailViewModel` and `BoardDetailRepository`. Card move requests try these variants in order for compatibility across Kan.bn API versions: `PUT /api/v1/cards/{cardPublicId}` with `listPublicId`, then a GET+full-body `PUT /api/v1/cards/{cardPublicId}` payload (`title`, `description`, `index`, `listPublicId`, `dueDate`), then `PUT /api/v1/cards/{cardPublicId}` with `listId`, then `PATCH /api/v1/cards/{cardPublicId}` with `listId`. Board detail parsing now prefers public ids (`publicId`/`public_id`) over internal `id` values so follow-up card/list mutations target the correct API identifiers. Label chip border colors are hydrated from the Kan.bn `Get a label by public ID` endpoint (`colourCode`) and cached in-memory by `BoardDetailRepository` so each label color is fetched only once per app process. The repository now also exposes create-list and create-card methods that validate/normalize user input and delegate to API create endpoints using public IDs. Selection action icons use local vector drawables (`ic_select_all_grid_24`, `ic_move_cards_horizontal_24`, `ic_delete_24`) with day/night resource variants so dark mode uses light icon fills automatically. Startup blocking dialogs are shown for missing board id and missing session.
 
 **Card detail view**
 - The view shows the card's title in bold letters. Tapping on the card's title allows editing it.

app/src/main/java/space/hackenslacker/kanbn4droid/app/boarddetail/BoardDetailRepository.kt

@@ -70,15 +70,40 @@ class BoardDetailRepository(
         )
     }
 
+    suspend fun createList(boardPublicId: String, title: String): BoardsApiResult<CreatedEntityRef> {
+        val normalizedBoardPublicId = boardPublicId.trim()
+        if (normalizedBoardPublicId.isBlank()) {
+            return BoardsApiResult.Failure("Board id is required")
+        }
+
+        val normalizedTitle = title.trim()
+        if (normalizedTitle.isBlank()) {
+            return BoardsApiResult.Failure("List title is required")
+        }
+
+        val session = when (val sessionResult = session()) {
+            is BoardsApiResult.Success -> sessionResult.value
+            is BoardsApiResult.Failure -> return sessionResult
+        }
+
+        return apiClient.createList(
+            baseUrl = session.baseUrl,
+            apiKey = session.apiKey,
+            boardPublicId = normalizedBoardPublicId,
+            title = normalizedTitle,
+            appendIndex = 0,
+        )
+    }
+
     suspend fun createCard(
-        listId: String,
+        listPublicId: String,
         title: String,
         description: String?,
         dueDate: LocalDate?,
-        tagIds: Collection<String>,
+        tagPublicIds: Collection<String>,
     ): BoardsApiResult<CreatedEntityRef> {
-        val normalizedListId = listId.trim()
+        val normalizedListPublicId = listPublicId.trim()
-        if (normalizedListId.isBlank()) {
+        if (normalizedListPublicId.isBlank()) {
             return BoardsApiResult.Failure("List id is required")
         }
 
@@ -88,7 +113,7 @@ class BoardDetailRepository(
         }
 
         val normalizedDescription = description?.trim()?.takeIf { it.isNotBlank() }
-        val normalizedTagIds = tagIds
+        val normalizedTagPublicIds = tagPublicIds
             .map { it.trim() }
             .filter { it.isNotBlank() }
             .distinct()
@@ -101,11 +126,11 @@ class BoardDetailRepository(
         return apiClient.createCard(
             baseUrl = session.baseUrl,
             apiKey = session.apiKey,
-            listPublicId = normalizedListId,
+            listPublicId = normalizedListPublicId,
             title = normalizedTitle,
             description = normalizedDescription,
             dueDate = dueDate,
-            tagPublicIds = normalizedTagIds,
+            tagPublicIds = normalizedTagPublicIds,
         )
     }
 

app/src/test/java/space/hackenslacker/kanbn4droid/app/boarddetail/BoardDetailRepositoryTest.kt

@@ -214,11 +214,11 @@ class BoardDetailRepositoryTest {
         val repository = createRepository(apiClient = apiClient)
 
         val result = repository.createCard(
-            listId = " list-1 ",
+            listPublicId = " list-1 ",
             title = " Card title ",
             description = "  Description  ",
             dueDate = LocalDate.of(2026, 3, 16),
-            tagIds = listOf(" tag-1 ", "", "tag-2", "tag-1", "   ", " tag-2"),
+            tagPublicIds = listOf(" tag-1 ", "", "tag-2", "tag-1", "   ", " tag-2"),
         )
 
         assertTrue(result is BoardsApiResult.Success<*>)
@@ -235,17 +235,59 @@ class BoardDetailRepositoryTest {
         val repository = createRepository(apiClient = apiClient)
 
         val result = repository.createCard(
-            listId = "list-1",
+            listPublicId = "list-1",
             title = "Card",
             description = "   ",
             dueDate = null,
-            tagIds = emptyList(),
+            tagPublicIds = emptyList(),
         )
 
         assertTrue(result is BoardsApiResult.Success<*>)
         assertEquals(null, apiClient.lastCreateCardDescription)
     }
 
+    @Test
+    fun createCard_delegatesWhenDueDateIsNull() = runTest {
+        val apiClient = FakeBoardDetailApiClient()
+        val repository = createRepository(apiClient = apiClient)
+
+        val result = repository.createCard(
+            listPublicId = "list-1",
+            title = "Card",
+            description = "Description",
+            dueDate = null,
+            tagPublicIds = listOf("tag-1"),
+        )
+
+        assertTrue(result is BoardsApiResult.Success<*>)
+        assertEquals("list-1", apiClient.lastCreateCardListPublicId)
+        assertEquals("Card", apiClient.lastCreateCardTitle)
+        assertEquals(null, apiClient.lastCreateCardDueDate)
+    }
+
+    @Test
+    fun createListRejectsBlankTitle() = runTest {
+        val repository = createRepository()
+
+        val result = repository.createList(boardPublicId = "board-1", title = "   ")
+
+        assertTrue(result is BoardsApiResult.Failure)
+        assertEquals("List title is required", (result as BoardsApiResult.Failure).message)
+    }
+
+    @Test
+    fun createListDelegatesToApiWithTrimmedIds() = runTest {
+        val apiClient = FakeBoardDetailApiClient()
+        val repository = createRepository(apiClient = apiClient)
+
+        val result = repository.createList(boardPublicId = " board-1 ", title = " New List ")
+
+        assertTrue(result is BoardsApiResult.Success<*>)
+        assertEquals("board-1", apiClient.lastCreateListBoardPublicId)
+        assertEquals("New List", apiClient.lastCreateListTitle)
+        assertEquals(0, apiClient.lastCreateListAppendIndex)
+    }
+
     @Test
     fun getBoardDetailValidatesBoardId() = runTest {
         val repository = createRepository()
@@ -507,6 +549,9 @@ class BoardDetailRepositoryTest {
         var deletedCardIds: MutableList<String> = mutableListOf()
         var lastMoveTargetListId: String? = null
         var getLabelByPublicIdCalls: MutableList<String> = mutableListOf()
+        var lastCreateListBoardPublicId: String? = null
+        var lastCreateListTitle: String? = null
+        var lastCreateListAppendIndex: Int? = null
         var lastCreateCardListPublicId: String? = null
         var lastCreateCardTitle: String? = null
         var lastCreateCardDescription: String? = null
@@ -550,6 +595,9 @@ class BoardDetailRepositoryTest {
             title: String,
             appendIndex: Int,
         ): BoardsApiResult<CreatedEntityRef> {
+            lastCreateListBoardPublicId = boardPublicId
+            lastCreateListTitle = title
+            lastCreateListAppendIndex = appendIndex
             return createListResult
         }